Răspunsuri

2014-05-05T20:58:36+03:00
A+b=298
a-19=b+19
a=b+38
b+38+b=298
2b=298-38
b=260:2
b=130

a=130+38=168
2014-05-05T20:58:38+03:00
X+y=298
x-19=y+19
x-y=19+19
x-y=38
x=38+y

38+y+y=298
2y=298-38
2y=260
y=130
x=130+38=168